@article{MR52767,
AUTHOR = "Eilenberg, Samuel and Zilber, J. A.",
TITLE = "On products of complexes",
JOURNAL = "Amer. J. Math.",
FJOURNAL = "American Journal of Mathematics",
VOLUME = "75",
YEAR = "1953",
PAGES = "200--204",
ISSN = "0002-9327",
MRCLASS = "56.0X",
MRNUMBER = "52767",
MRREVIEWER = "H. Cartan",
DOI = "10.2307/2372629"
}
$\Newextarrow{\xhookrightarrow}{10,10}{0x21AA}$